Linphone Linphone is an internet phone or Voice Over IP phone (VoIP). With Linphone you can communicate freely with people over the internet, with voice, video, and text instant... Free Open Source Mac OS X Windows Linux Web Windows Mobile ... Android iPhone Android Tablet Windows Phone iPad Xfce Encrypted VoIP calls Video calling Add a feature 102 Like
MicroSIP MicroSIP is a free portable SIP softphone for Windows based on PJSIP stack. It allowing to do high quality VoIP calls (P2P or on regular telephones) via open SIP... Free Open Source Windows PortableApps.com No features added Add a feature 16 Like
Telephone Telephone is a VoIP program which allows you to make phone calls over the internet. It can be used to call regular phones via any appropriate SIP provider, including... Free Open Source Mac OS X No features added Add a feature 16 Like
3CX Phone System 3CXPhone is a free VoIP phone available for Windows, iPhone or any Android based smart phone such as Google Nexus, Sony Xperia, Motorola Droid or Samsung Galaxy. Connect... Freemium Windows Android iPhone No features added Add a feature 8 Like
YateClient YateClient is an Instant Messenger and a SoftPhone. Free Mac OS X Windows Linux No features added Add a feature 3 Like
Starfish PBX Starfish PBX aims to be an open source alternative to Digium’s Switchvox. The goal is to have a software equivalent to which we can add additional functionality like: ... Free Open Source Linux No features added Add a feature 1 Like
